Human Sensation and Eye Anatomy Quiz
48 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is considered an additional human taste sensation?

  • Sour
  • Sweet
  • Bitter
  • Umami (correct)
  • What is the primary role of the palpebrae in eye anatomy?

  • To support the eyeball structure
  • To adjust light entering the eye
  • To provide lubrication and protection (correct)
  • To enhance visual acuity
  • At what age does the number of taste buds begin to decline rapidly?

  • 40
  • 50 (correct)
  • 30
  • 60
  • Which nerve is responsible for carrying temperature and texture information of food?

    <p>Trigeminal nerve V</p> Signup and view all the answers

    Which of the following best describes the lacrimal caruncle?

    <p>Mass of tissue producing eye lubricants</p> Signup and view all the answers

    What percentage of Caucasians can taste phenylthiocarbamide (PTC)?

    <p>70%</p> Signup and view all the answers

    Which structure helps to keep the eyelids from sticking together?

    <p>Tarsal glands</p> Signup and view all the answers

    What is the primary function of taste and smell combination in food perception?

    <p>To experience full flavor</p> Signup and view all the answers

    Which layer of the olfactory organs contains olfactory glands that produce mucus?

    <p>Lamina propria</p> Signup and view all the answers

    What substance must odorants do to initiate olfactory reception?

    <p>Dissolve in nasal mucus</p> Signup and view all the answers

    What is the primary function of filiform papillae on the tongue?

    <p>Providing friction for food movement</p> Signup and view all the answers

    Which structure is the first to receive axons from the olfactory epithelium?

    <p>Olfactory bulb</p> Signup and view all the answers

    Which sensory system is unique in that it does not pass through the thalamus before reaching the cerebral cortex?

    <p>Smell</p> Signup and view all the answers

    What type of cells in the olfactory epithelium are responsible for detecting odorants?

    <p>Olfactory receptor cells</p> Signup and view all the answers

    What is the role of the hypothalamus in relation to olfaction?

    <p>Regulating emotional responses to smells</p> Signup and view all the answers

    Which type of cell in the olfactory epithelium serves as stem cells that replenish the epithelium?

    <p>Basal cells</p> Signup and view all the answers

    What phenomenon occurs when light enters the eye and impacts how images are perceived?

    <p>Image reversal</p> Signup and view all the answers

    What is a primary characteristic of astigmatism?

    <p>Distorted visual image</p> Signup and view all the answers

    If someone has a visual acuity of 20/40, what does it imply?

    <p>They require to be closer to objects to see details.</p> Signup and view all the answers

    How are rods and cones differentiated in their function?

    <p>Rods are for dim light and cones are for color vision in bright light.</p> Signup and view all the answers

    In visual physiology, which type of cones has the highest sensitivity to light?

    <p>Red cones</p> Signup and view all the answers

    Which of the following describes behavioral optometry?

    <p>Eye exercises and lenses to improve vision</p> Signup and view all the answers

    What is the approximate ratio of rods to cones in the retina?

    <p>120:6 million</p> Signup and view all the answers

    Which statement about the stimulation of cones is accurate?

    <p>Color vision is based on the combination of cone activations.</p> Signup and view all the answers

    What is the primary function of the tympanic membrane?

    <p>Converts sound energy into vibrations</p> Signup and view all the answers

    Which structure connects the middle ear to the nasopharynx?

    <p>Eustachian tube</p> Signup and view all the answers

    Which of the following is not part of the middle ear?

    <p>Cochlea</p> Signup and view all the answers

    What role does the round window play in the ear?

    <p>Allows pressure relief from the cochlea</p> Signup and view all the answers

    Where is endolymph produced in the inner ear?

    <p>Cochlear duct</p> Signup and view all the answers

    What is the function of hair cells in the inner ear?

    <p>Detect changes in equilibrium and sound</p> Signup and view all the answers

    Which part of the inner ear is responsible for sensations of equilibrium?

    <p>Semicircular canals</p> Signup and view all the answers

    What condition is characterized by infection in the middle ear?

    <p>Otitis media</p> Signup and view all the answers

    What happens to rhodopsin after it absorbs a photon of light?

    <p>It breaks down into retinal and opsin.</p> Signup and view all the answers

    What effect does the pupillary constrictor reflex have in bright light?

    <p>It decreases the amount of light entering the eye.</p> Signup and view all the answers

    How long does it take for visual pigments to fully recover from bleaching in the dark-adapted state?

    <p>About 30 minutes.</p> Signup and view all the answers

    What happens during the light-adapted state?

    <p>Sensitivity to light decreases as bleaching occurs.</p> Signup and view all the answers

    What is the optic disc?

    <p>The convergence point of axons from ganglion cells.</p> Signup and view all the answers

    What percentage of the optic nerve fibers cross over at the optic chiasm?

    <p>Half of the fibers from each eye.</p> Signup and view all the answers

    Which structure links the thalamus to the visual cortex?

    <p>Optic radiation.</p> Signup and view all the answers

    In which state is the visual system particularly sensitive to low light conditions?

    <p>Dark-adapted state.</p> Signup and view all the answers

    What structure within the vestibule is responsible for detecting horizontal movement?

    <p>Utricle</p> Signup and view all the answers

    What happens when the otoliths in the vestibule shift due to tilting the head?

    <p>They bend the hair cells.</p> Signup and view all the answers

    Which part of the inner ear is primarily involved in maintaining dynamic equilibrium?

    <p>Semicircular canals</p> Signup and view all the answers

    What is the function of hair cells located in the ampulla of the semicircular ducts?

    <p>Respond to head rotation</p> Signup and view all the answers

    Which fluid is contained in the scala vestibuli of the cochlea?

    <p>Perilymph</p> Signup and view all the answers

    What role does the vestibular system play in the body?

    <p>Maintaining balance and spatial orientation</p> Signup and view all the answers

    Which of the following statements accurately describes the relationship between endolymph and cupula during head rotation?

    <p>Endolymph lags behind the cupula.</p> Signup and view all the answers

    Which structure separates the scala tympani from the cochlear duct?

    <p>Basilar membrane</p> Signup and view all the answers

    More Like This

    Taste Buds and Sensation Overview
    128 questions
    TEMA 7 DE ANATOMÍA
    40 questions

    TEMA 7 DE ANATOMÍA

    BuoyantJade9944 avatar
    BuoyantJade9944
    Use Quizgecko on...
    Browser
    Browser